He has been identified as Alfredo Emilio Villarreal, 18, from Janesville.

According to the Walworth County Sheriff's Office, Villarreal attacked a deputy in an attempt to escape from Lakeland Medical Center, and punched and kicked the deputy in the face multiple times.

The deputy called for assistance at about 6:47 p.m., and several law enforcement agencies responded to the medical center.

Walworth County Sheriff David Graves said his deputy tried to stun Villareal with a Taser, but for some reason, still under investigation, that option failed.

"The inmate grabbed a chair, tried to bust the window out so he could escape out the window. When my deputy reentered the room, the inmate used a chair, swung the chair at my deputy’s head, at which time the deputy had no other choice but to use his weapon," Graves said.

Lifesaving measures were immediately implemented by law enforcement and medical staff.

Liz Villarreal told WISN 12 News her brother was taken into custody Sunday night after a traffic stop, but had a medical problem while in the Walworth County Jail on Monday.

"He had a seizure in the morning and about, I'd say they told him about 3 p.m., or so, that he tried attacking the officer or something, and then the Taser didn't work and the officer shot him," Villarreal said.

Relatives said they were informed Villarreal had shackles around his feet during the alleged altercation.

The sheriff disputed that.

"He had been shackled to the bed, but that shackle was released so he could use the restroom," Graves said.

"So his legs, his ankles and his feet were not shackled together?" WISN 12 News reporter Abe Lubetkin asked.

"No," Graves said.

"His hands were not shackled" Lubetkin asked.

"No," Graves said.

The Waukesha County Sheriff's Office is now investigating the shooting.

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